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Evidence synthesis and analyses

SR Sorayya Rezayi
AA Alireza Amanollahi
LS Leila Shahmoradi
NR Nafiseh Rezaei
MK Meysam Rahmani Katigari
MZ Mitra Zolfaghari
BM Babak Manafi
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We imputed the mean changes (before, after) and the pooled standard deviation of the study outcome values in the meta-analysis. All analyses related to meta-analysis were performed using a model with random effects. Estimated values for pooled effect sizes in all learning outcomes were shown with Standardized Mean Differences (SMD); this method was chosen due to the different parameter scales in the selected studies. Heterogeneity was assessed with I2, τ2 tests, while publication bias was evaluated by Egger’s, Begg’s test. All analyses were conducted in Stata v16 and EndNote X9 was applied for resource management. Hence, Mean Gain (MG) and SD Pooled from pre and post-intervention were inputted into Stata v16.

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